Spindle for spinning and twisting machines



2 Sheets-Sheet 1.

(No Model.)

T. HALL.

SPINDLE FOR SPINNING AND TWISTING MACHINES. No. 245,487..

Patented Aug. 9, 1881.

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(No Model.)

T. HALL.-

SPINDLE FOR SPINNING AND TWISTING MAGIIINE'S.

No. 245,487. Patented Aug. 9,1881

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UNITED STATES PATENT OFFICE.

THOMAS HALL, OF LAWRENCE, MASSACHUSETTS.

SPINDLE FOR SPINNING AND TWISTING MACHINES.

SPECIFICATION forming part of Letters Patent No. 245,487, dated August9, 1881.

Application filed January 31, 1881. (No model.)

To all whom it may concern Be it known thatLTHOMAS HALL, a citizen ofthe United States, residing at Lawrence, in the county of Essex andState of Massachusetts, have invented certain new and usefulImprovements in Spindles for Spinning and Twisting Machines; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to the letters or figures of reference markedthereon, which form a part of this specification.

This invention relates to spindles employed in spinning and twistingmachinery; and the novelty consists in the construction and arrangementofparts, as will be more fully hereinafter set forth, and speciallypointed out in the claims.

Heretofore spindles of the class to which myinvention pertains have beencast or forged of one piece of metal, having a boss and spindle arm orblade, leaving an abrupt shoulder at the junction of the two, making thespindle weak and liable to break at this point.

The object of my invention is to overcome this objection, and to furnisha spindle which shall be alike cheap to manufacture and effective inoperation.

In the drawings which form a part of this specification, Figure 1 is alongitudinal elevation of the spindle, showing the whirl and tube insection on the same; Fig. 2, a sectional detail view of the same; Fig.3, a side elevation, showing the spindle in position, with the cap,whirl, and tube to carry the bobbin.

The spindle proper is of steel, and has cast thereon a spirally-groovedboss, having a wrench-head formed upon the lower end of the same, bymeans of which the position of the spindle may be changed.

A represents or designates the spindle-arm B, the boss cast thereon O,the spiral groove upon said boss, in which the set-screw operates tohold itin position; D, the wrench-head; F, the whirl, and G the tube.

Fig. 8, Sheet 2, of the drawings, shows the spindle in working position,with the cap H, whirl F, and tube G.

In operation the spindle passes through the spindle-rail E and thelifter-rail I. The lower or boss end of the spindle is secured to thespindle-rail and firmly held in position by the set-screw a passingthrough the rail E. When the set-screw is loosened the spindle may beraised orlowered by means of the wrench-head D, and again secured andheld by the set screw a, and the whirl 1 being mounted upon the tube Gr,which fits loosely over and upon' the spindle-arm A, it revolves freelyupon said spindle, and is raised and lowered by the lifterrail 1.

What I claim, and desire to secure by Letters Patent, is

l. The steel spindle or twisting-spindle A, having the spirally-groovedboss B cast thereon, and having formed on its lower end the wrench-headD, substantially as shown and set forth.

2. The rail E of a spinning or twisting machine, the spindle A, with theboss B, having the spiral groove 0 cast thereon and formed with thewrench-head D, and the set-screw a, all constructed and combined asshown, and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS HALL.

Witnesses:

JAMES NEWTON, FRANCIS A. HALL.

